Thanks for the very nice comments.
Ableton Live will map your MIDI controller’s knobs to Aalto’s parameters very easily using the ‘configure’ menu. I plan to add MIDI mapping within Aalto, but that’s mainly for people who have hosts that aren’t as good at it. Live’s implementation works very well.
As far as percussion, there’s a folder of patches called “Aalto percussion” that comes with the plugin.
I was dealing with some website issues and having to make licenses manually so I did a kind of “soft open” today. Everything should be working now. I’ll publicize the releases and sale more over the coming few days.